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Bash Tips

Terminal login load script
add *.sh with chomd +x to /etc/profile.d/

the same as . / source command ( . *.sh )
all functions in *.sh can be run as bash commands
all variables in *.sh can be called in shell

Terminal banner
display banner on login from /etc/motd

Name	Name	Last commit message	Last commit date
Latest commit rern Update math.md Apr 4, 2025 ab43f5d · Apr 4, 2025 History 613 Commits
docs	docs	Set theme jekyll-theme-cayman	Jul 30, 2017
'awk'.md	'awk'.md	Update 'awk'.md	Jun 11, 2023
'bg'-'fg'.md	'bg'-'fg'.md	Update 'bg'-'fg'.md	Jul 5, 2022
'bsdtar'.md	'bsdtar'.md	Update 'bsdtar'.md	Aug 10, 2020
'chmod'.md	'chmod'.md	Update 'chmod'.md	Sep 15, 2020
'column'.md	'column'.md	Create 'column'.md	Jul 28, 2017
'cp'_'mv'_'ln'_shorthand.md	'cp'_'mv'_'ln'_shorthand.md	move to root dir	Jul 27, 2017
'cut'-get_quoted_value.md	'cut'-get_quoted_value.md	move to root dir	Jul 27, 2017
'echo'.md	'echo'.md	Update 'echo'.md	Aug 21, 2017
'find'_file_or_content.md	'find'_file_or_content.md	Update 'find'_file_or_content.md	Jan 1, 2023
'getopts'.md	'getopts'.md	move to root dir	Jul 27, 2017
'grep'-line_word_get.md	'grep'-line_word_get.md	Update 'grep'-line_word_get.md	Oct 25, 2022
'if'_grouping.md	'if'_grouping.md	move to root dir	Jul 27, 2017
'iwd'.md	'iwd'.md	Update 'iwd'.md	Feb 8, 2024
'ln'_all_subdir.md	'ln'_all_subdir.md	Create 'ln'_all_subdir.md	Aug 22, 2017
'ls'.md	'ls'.md	Update 'ls'.md	Jun 11, 2023
'pacman'.md	'pacman'.md	Update 'pacman'.md	Jan 29, 2024
'printf'_column.md	'printf'_column.md	Rename format_column.md to 'printf'_column.md	Oct 4, 2017
'redis-cli'.md	'redis-cli'.md	Update 'redis-cli'.md	May 31, 2018
'rsync'.md	'rsync'.md	Create 'rsync'.md	Sep 15, 2020
'sed'.md	'sed'.md	Update 'sed'.md	Feb 21, 2024
'sfdisk'.md	'sfdisk'.md	move to root dir	Jul 27, 2017
'sqlite3'.md	'sqlite3'.md	move to root dir	Jul 27, 2017
'telnet'.md	'telnet'.md	Create 'telnet'.md	Jul 19, 2021
'top'.md	'top'.md	Update 'top'.md	May 29, 2019
'wget'.md	'wget'.md	Update 'wget'.md	Jul 15, 2020
.editorconfig	.editorconfig	fix .editorconfig	Sep 25, 2017
.gitattributes	.gitattributes	move to root dir	Jul 27, 2017
GitHub.md	GitHub.md	Create GitHub.md	Jun 28, 2023
HTTP_request.md	HTTP_request.md	Create HTTP_request.md	Feb 1, 2022
LS_COLORS.md	LS_COLORS.md	Update LS_COLORS.md	Jul 29, 2017
README.md	README.md	move to root dir	Jul 27, 2017
argument_flag.sh	argument_flag.sh	Update argument_flag.sh	Sep 11, 2017
array.md	array.md	Update array.md	Sep 26, 2022
block_comment.md	block_comment.md	move to root dir	Jul 27, 2017
bulk_copy.md	bulk_copy.md	Update and rename 'rsync'.md to bulk_copy.md	Aug 14, 2019
color.md	color.md	Update color.md	Jul 30, 2017
color_chart.png	color_chart.png	move to root dir	Jul 27, 2017
comment.md	comment.md	Create comment.md	Jun 10, 2018
comparison.md	comparison.md	Update comparison.md	Aug 11, 2017
copy_large_dir.MD	copy_large_dir.MD	Create copy_large_dir.MD	Jan 21, 2018
debounce_throttle.md	debounce_throttle.md	Update debounce_throttle.md	Jun 6, 2021
download.md	download.md	Update download.md	Feb 13, 2021
ext4_partition.md	ext4_partition.md	move to root dir	Jul 27, 2017
fifo.md	fifo.md	Update fifo.md	Jul 20, 2021
file.md	file.md	Update and rename file_list.md to file.md	Jun 11, 2023
grave_accent-tilde.md	grave_accent-tilde.md	Create grave_accent-tilde.md	Aug 2, 2017
heredoc.md	heredoc.md	Update heredoc.md	Apr 3, 2023
math.md	math.md	Update math.md	Apr 4, 2025
motd.md	motd.md	move to root dir	Jul 27, 2017
mount_windows_share.md	mount_windows_share.md	Create mount_windows_share.md	Dec 26, 2018
mpd.md	mpd.md	Update mpd.md	Sep 16, 2018
nfs.md	nfs.md	Update nfs.md	Sep 29, 2022
nfsshare.sh	nfsshare.sh	Update nfsshare.sh	Jan 31, 2022
paren_bracket_brace.md	paren_bracket_brace.md	move to root dir	Jul 27, 2017
php_cli_with_arguments.md	php_cli_with_arguments.md	Create php_cli_with_arguments.md	Jan 11, 2019
ps_cpu_core.md	ps_cpu_core.md	Create ps_cpu_core.md	Oct 13, 2020
redis_dump_to_file.md	redis_dump_to_file.md	move to root dir	Jul 27, 2017
std_redirect.md	std_redirect.md	Update std_redirect.md	Oct 4, 2022
string_banner.sh	string_banner.sh	move to root dir	Jul 27, 2017
string_extract_edit.md	string_extract_edit.md	Update string_extract_edit.md	Feb 6, 2024
sudoers.d_.md	sudoers.d_.md	Update sudoers.d_.md	Aug 19, 2017
systemd.md	systemd.md	Update systemd.md	Jan 1, 2023
tabular_stdout.md	tabular_stdout.md	Update tabular_stdout.md	Jun 9, 2019
ts.sh	ts.sh	Update ts.sh	Aug 11, 2017
usage_convention.md	usage_convention.md	move to root dir	Jul 27, 2017
user_input.md	user_input.md	Create user_input.md	Jul 20, 2020
variable_argument.md	variable_argument.md	Update variable_argument.md	Jun 10, 2018
while.sh	while.sh	Add files via upload	Sep 17, 2017
wifi.md	wifi.md	Update wifi.md	Jul 23, 2019

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